Sash-fastener



(No Model.) HAPLIN1 SASH PASTENER.

No. 453,177. Patented June 2, 1891.

- UNITED STATES PATENT OFFICE.

ORRIL R. OHAPLIN, OF BOSTON, MASSACHUSETTS.

SASH-IFASTEN ER.

SPECIFICATION forming part of Letters Patent No. 453,177, dated June 2,1891.

Application filed February 6, 1891. Serial No. 380,467. (No model.)

Massachusetts, have invented certain new and useful Improvements inVVindow-Fasteners, of which the following, taken in connection with theaccompanying drawings, is a specification.

My invention relates to window-fasteners for securing together the upperand lower sashes of windows having vertically-movable sashes; and itconsists in certain novel features of construction, arrangement, andcombination of parts, which will be readily understood by reference tothe description of the drawings and to the claims hereinafter given, andin which my invention is clearlypointed out.

Figure 1 of the drawings is an elevation of a window with myimprovedfastener applied thereto, the same being shown with the sashes closedand locked and viewed from the interior of the room. Fig. 2 is avertical section on line w 90 on Fig. 1, looking toward the right ofsaid figure, and showing both sashes moved from their normal or closedpositions and locked together. Fig. 3 is a plan of that portion of thefastening which is secured to and moves with the lower or inner sash.Fig, at is an inverted plan of the same, partly in section. Fig. 5 is acentral ,vertical section of the base of the same, and showing thefasteniug-lever and the spring in elevation; and Fig. 6 is a plan of thelocking-latch detached.

In the drawings, A is the lower sash, B the upper sash, O O portions ofthe windowframe, D the window-sill, a a a the stopbeads, and b theparting-bead, all of which are of ordinary construction. n

To the upper or meeting rail 0 of the lower sash is secured thebase-plate cl of the fastener, made in the form of a shallow invertedcup and having pivoted to its center the fastening-lever E, provided atits front end with the fin ger-pad e and the downwardly-projecting lugc, and having formed in the side of its rearwardly-projectin g arm theopen slot e which engages the post F between two of the collars f,formed thereon, to fasten the two sashes together, either in a closedposition or in a partially-opened position, as shown in Fig. 2.

The post or column F has formed thereon the base-flange f, by which andthe screws f it is firmly secured to the lower or meeting rail of theupper sash B in an upright position, and has formed thereon a series ofcircumferential grooves g, each of a vertical width equal to or slightlygreater than the vertical depth of rear or hook end of the lever E, saidgrooves g and the collars f being so arranged on said post or columnthat the lower groove shall be in position to receive the slotted end ofthe lever E when the two sashes are tightly closed, as shown in Fig. 1.

The base-plate (Z has formed in its cylind rical wall two rectangularslots d and d and in its upper surface the slot (i curved concentric tothe axis of the pivot about which the lever E moves in fastening andunfasteniug the window.

The lever E has set in its under side the pin h. which projects throughthe slot (1 into the chamber of the base-plate d, as shown in Figs. 4and 5.

II is the locking latch-lever provided with the operating-arm h. andwith the shoulders i and i, one at each end of the curved wedgelikeexpansion 7L which projects through the slot 61, while the arm hprojects through the slot d as shown in Figs. 1, 2, 3, and 4. Theshoulder 11 of the latch-lever H rests against the right-hand end of theslot d',with the toe 1? bearing against the inner surface of the wall ofthe chamber, against which it is pressed by the tension of thescroll-spring j, the outer end of which is connected. to thelocking-lever H by having a portion thereof bent at right angles to itsmain body and inserted in the hole 1 formed in said lever near theshoulder t',while the inner end of said spring is attached to the end ofthe pin h, as shown in Fig. 4:. By this construction and arrangement ofthe fastening-lever E, the locking-latch H, and the spring j a singlespring is made to serve the purpose of holding the fastening-lever E ineither its engaged or disengaged position, and also to press thelocking-latch H outward, as shown. This is accomplished by virtue of thefact that the inner end of the scroll-spring is attached to the pin h,which,when the lever E is moved from one extreme of its movement to theother, travels in a curved path concentric to the axis of motion of saidlever and from a point on one side of a radial line Z drawn through saidaxis and point of attachment of the outer end of said spring to thelatch-lever II to a point upon the opposite side of and about the samedistance from said line. \Vhen the lever E is moved in either direction,the spring j tends to resist such movement until the pin 7i reaches apoint on the line Z Z; but when said pin has passed said line thetension of the spring tends to move said pin toward the end of the slot(1 the ends of which serve as stops to limit the movement of the lever Ein either direction.

By the use of my improved fastening the window-sash may be securelylocked together either in a closed position or when partially opened forthe purpose of ventilation, and may be so adjusted as to be open at thebottom or top, or both top and bottom, and still be secure againstattacks of outsiders, except by breaking the glass.

In some cases, where it is only desired to fasten the window in a closedposition, the post F would be made only of sufficient height to haveformed thereon the lower groove g, all of said post above the lowercollar f being omitted.

I claim- 1. The combination, in a window-fastener, of a post or columnto be secured to the meeting-rail of the upper sash and provided with acircumferential groove, a base-plate to be secured to the meeting-railof the lower sash, a two-armed lever pivoted to said base-plate so as tobe movable about said pivot in a horizontal plane, and provided on itsfront arm with a pendent lug and having its rear arm constructed andarranged to engage the groove in said post, stops to limit the movementof said lever in both directions, a latch-lever for locking saidtwo-armed lever in engaged position, and a spring for controlling theaction of said latch-lever.

2. The combination, in a window-fastener, of a post or column to besecured to the meeting-rail of the upper sash and provided with a seriesof circumferential grooves formed thereon one above the other, abase-plate to be secured to the meeting-rail of the lower sash, atwo-armed lever mounted upon said base by a vertical pivot and providedon its front arm witlra pendent lug and having its rear arm constructedand arranged to engage either of the grooves on said post or column, anda spring-pressed latch for locking said lever when in engaged position.

3. The combination of a pivoted lever constructed and arranged to bevibrated about its pivotal connection, stops to limit the move-- ment ofsaid lever in both directions, and a scroll-spring having its outer endpivoted in a bearing intermediate between the two extremes of theangular movement of said lever and its inner end connected to saidlever, so that said spring shall tend to press said lever against itsstop at either extreme of its movement.

4. The combination of the inverted-cu p-like base-plate (Z, providedwith the slots (1, d and d, the lever E, pivoted to said base-plate andprovided at one end with the slot 6 and at its other end with the lug e,the locking latch-lever H, the pin h, set in the lever E and projectingthrough the slot (Z the scroll-spring j, connected at one end to thelatch-lever II and at its other end to the pin it, and the post orcolumn F, constructed and adapted to be secured to the meeting-rail ofthe upper sash and provided with a series of grooves or notches toreceive the inner end of the lever l, substantially as described.

In testimony whereof I have signed my name to this specification, in thepresence of twosubscribing witnesses, on this 5th day of February, A. D.1891.

ORRIL R. (JIIAPLIN.

Witnesses:

N. 0. LOMBARD, WALTER LOMBARD.

